MSP430FR6047: custom board calibration without GUI in template example code

Hi veeranna,

Analogics Rnd Solar said:

I noticed the function uss_calibrateVFRFlow(*config, *result) in ussSwLibVFRCalibFlow.c. Is this function used for calibration?

Yes, it is for the calibration. As you can see in "USS_calibrateVFRFlow" function, it will add slope and offset to the original flow rate as shown below.

Analogics Rnd Solar said:

The main question is: how can we calibrate our custom meter (FR6047) using a reference meter flow rate across different flow rates (0 to 7000 LPH)?

For how to use reference meter to do the calibration, please refer to the https://www.ti.com/lit/an/slaa837a/slaa837a.pdf, even though it is based on the GUI, but you can take it as reference for your calibration process without GUI.

Below thread has a discussion for the custom calibration process for your reference.

MSP430FR6047: Processing issue with msp430fr6047 at specific sampling frequencies during flow conversion

Best Regards,
Peter